CS Instruments VA 521 用于压缩空气和其他类型气体的紧凑型内联式流量传感器

Parameter: m³/h, l/min (1000 mbar, 20°C) in case of compressed air or Nm³/h, NI/min (1013 mbar, 0°C) in case of gases

Units adjustable via keys at display: m³/h, m³/min, l/min, l/s, ft/min, cfm, m/s,kg/min, g/s, lb/min, lb/h 

Sensor: Thermal mass flow sensor

Measured medium: Air, gases

Gas types are adjustable over CS service software or CS data logger: Air, nitrogen, argon, CO2, oxygen

Measuring range: Low-speed version (50m/s); Standard version(92.7 m/s); Max version (185 m/s); High-speed version (224m/s)

Accuracy: (o.M. V.= of measured value);  (o. F. S. = of full scale): :±1.5% of m.v. ± 0.3% of f.s. on request: ± 1% of m.v. ± 0.3% of f.s. 

Operating temperature: -30...80°C 

Operating pressure: Up to 16 bar, optionally 40 bar 

Digital output: RS 485 interface, (Modbus-RTU), optional M-Bus, Ethernet interface or PoE 

Analog output: 4...20 mA for m³/h or l/min 

Pulse output: 1 pulse per m³ or per liter electrically isolated. Pulse weight can be set on the display. Alternatively. the pulse output can be used as an alarm relay 

Supply: 18...36 VDC, 5W 

Burden: < 500  Ω

Housing: Polycarbonate (IP 65) 

Measuring section: Aluminium. 316L 

Connection thread of measuring sections: G 1/2 to G 2" (BSP British Standard Piping) or 1/2" to 2" NPT thread. 

Mounting position: any